Subcellular distribution of calmodulin and calmodulin-binding sites in Tetrahymena pyriformis.
The subcellular distribution of calmodulin and particulate calmodulin-binding activity was studied in a eukaryotic protozoan, Tetrahymena pyriformis NT-1. The particulate calmodulin-binding activity was found to be localized principally in microsomes and to some extent in cilia and surface membranes called pellicles. Nearly all (93%) of the total amount of calmodulin was recovered in two soluble compartments, the ciliary and postmicrosomal supernatant fractions.
D000818:Animals; D001665:Binding Sites; D002135:Calcium-Binding Proteins / Q000032:analysis*; D002147:Calmodulin / Q000032:analysis*; D013347:Subcellular Fractions / Q000032:analysis; D013769:Tetrahymena pyriformis / Q000032:analysis*; D014018:Tissue Distribution
D002135:Calcium-Binding Proteins; D002147:Calmodulin